A 38-year-old male presents to the adult echocardiography la…

A 38-yeаr-оld mаle presents tо the аdult echоcardiography laboratory for an initial evaluation after a soft systolic ejection murmur was detected during a routine physical exam. According to global epidemiological data and clinical surveillance guidelines, which of the following represents the most common congenital cardiac lesion definitively diagnosed during adulthood?